A forming die for an automobile a pillar

Abstract

The utility model discloses a kind of forming die for automobile A column, it includes base, the upper surface of the base is fixedly connected with guide rod, the upper end of the guide rod is fixedly connected with top plate, the upper surface of the top plate is fixedly connected with cylinder, the output end of the cylinder is provided with connecting shaft. By setting pressure rod, first spring, pressing block, wedge block, inclined surface top block, limit block and limit cavity, workpiece can be quickly separated from the inside of female die, so as to improve work efficiency, and when the first spring elasticity is insufficient to eject workpiece, workpiece can be taken out by pressing pressing block, and the utility model has strong practicability. By setting nozzle, air pipe, piston cylinder, second spring, piston block, piston rod and pressing plate, the inside of female die can be blown after male die retreats, so as to blow out the impurities in the female die by using airflow, to avoid its attachment on subsequent formed workpiece, and then ensure that the cavity remains clean for a long time, indirectly improve product pass rate.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, and in particular to a molding die for automobile A-pillar. Background Technology

[0002] The A-pillar of a car refers to the vertical or inclined pillars on both sides of the windshield, connecting the roof to the front of the vehicle body, and is an important component of the car body frame. It is located on the left and right sides in front of the driver's cabin, extending from the front of the car to the roof, and together with the B-pillar and C-pillar (and D-pillar on some models), it forms the side support structure of the car body. The A-pillar is mostly formed using stamping dies, and the workpiece is formed by the closing action of the punch and die.

[0003] However, existing molding dies for automotive A-pillars still have certain defects. For example, after the A-pillar workpiece is formed, it is easy for it to fit tightly against the inner wall of the die, making it difficult to demold and affecting work efficiency. Secondly, during the A-pillar forming process, metal shavings and other impurities are easily left in the die. If they are not cleaned in time, they will cause defects such as indentations and pits on the surface of subsequent workpieces. Utility Model Content

[0004] The purpose of this utility model is to provide a molding die for automotive A-pillars, which can quickly remove the workpiece from the inside of the die cavity, thereby improving work efficiency. When the elasticity of the first spring is insufficient to eject the workpiece, it can be used in conjunction with the pressing block to remove the workpiece. It is highly practical. After the punch retracts, air can be blown into the inside of the die cavity to blow out impurities from the inside of the die cavity, so as to prevent them from adhering to the workpieces to be molded later, thereby ensuring that the cavity remains clean for a long time and indirectly improving the product qualification rate.

[0005] To achieve the above objectives, a molding die for an automobile A-pillar is provided, comprising: A base has a guide rod fixedly connected to its upper surface, a top plate fixedly connected to the upper end of the guide rod, a cylinder fixedly connected to the upper surface of the top plate, a connecting shaft provided at the output end of the cylinder, a fixing plate fixedly connected to the lower end of the connecting shaft, a punch fixedly connected to the lower surface of the fixing plate, a die fixedly connected to the upper surface of the base, a pressure rod slidably connected to the inner surface of the die, a first spring provided on the outer surface of the pressure rod, a pressure block fixedly connected to the left end of the pressure rod, a wedge block fixedly connected to the right end of the pressure rod, an inclined top block slidably connected to the inner surface of the die, a limit block fixedly connected to the outer surface of the inclined top block, and a limit cavity provided inside the die.

[0006] A nozzle is fixedly connected to the inner surface of the concave mold, and an air pipe is fixedly connected to the outer surface of the nozzle. A piston cylinder is fixedly connected to the end of the air pipe away from the nozzle. A second spring is fixedly connected inside the piston cylinder. A piston block is fixedly connected to the lower end of the second spring. A piston rod is fixedly connected to the lower surface of the piston block. A pressure plate is fixedly connected to the lower end of the piston rod.

[0007] According to the molding die for an automotive A-pillar, the outer surface of the pressure plate is provided with a through hole, the inner diameter of which is larger than the outer diameter of the connecting shaft.

[0008] According to the aforementioned molding die for an automotive A-pillar, the outer surface of the guide rod is slidably connected to the fixing plate, the left end of the first spring is fixedly connected to the concave die, and the right end of the first spring is fixedly connected to the wedge block.

[0009] According to the aforementioned molding die for an automotive A-pillar, the outer surface of the wedge block is slidably connected to the inclined top block, the outer surface of the wedge block is slidably connected to the concave die, and the outer surface of the inclined top block is slidably connected to the concave die.

[0010] According to the aforementioned molding die for an automotive A-pillar, the inner surface of the limiting cavity is slidably connected to the limiting block.

[0011] According to the aforementioned molding die for an automotive A-pillar, the nozzle is connected to an air pipe, and the air pipe is connected to a piston cylinder.

[0012] According to the aforementioned molding die for an automotive A-pillar, the outer surface of the piston block is slidably connected to the piston cylinder, the outer surface of the piston rod is slidably connected to the piston cylinder, and the outer surface of the piston cylinder is fixedly connected to the top plate.

[0013] According to the molding die for an automotive A-pillar, the upper surface of the fixing plate is in contact with the pressure plate.

[0014] The above-mentioned solution has the following beneficial effects: By setting up a pressure rod, a first spring, a pressure block, a wedge block, an inclined top block, a limiting block, and a limiting cavity, the workpiece can be quickly removed from the inside of the die, thereby improving work efficiency. When the elasticity of the first spring is insufficient to eject the workpiece, it can be used in conjunction with the pressing block to remove the workpiece, making it highly practical. By setting up structures such as nozzles, air pipes, piston cylinders, second springs, piston blocks, piston rods, and pressure plates, air can be blown into the interior of the die after the punch retracts. This airflow blows out impurities from inside the die, preventing them from adhering to the workpieces being formed later. This ensures that the cavity remains clean for a long time, indirectly improving the product qualification rate.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of a molding die for an automobile A-pillar according to the present invention; Figure 2 This is a cross-sectional view of the overall structure of a molding die for an automobile A-pillar according to the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B.

[0017] Legend: The components are as follows: 1. Base; 2. Guide rod; 3. Top plate; 4. Cylinder; 5. Connecting shaft; 6. Fixing plate; 7. Punch; 8. Die; 9. Pressure rod; 10. First spring; 11. Pressure block; 12. Wedge block; 13. Inclined top block; 14. Limiting block; 15. Limiting cavity; 16. Nozzle; 17. Air pipe; 18. Piston cylinder; 19. Second spring; 20. Piston block; 21. Piston rod; 22. Pressure plate; 23. Through hole. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] Reference Figure 1-4This utility model discloses a molding die for an automobile A-pillar, comprising: a base 1, a guide rod 2 fixedly connected to the upper surface of the base 1, a top plate 3 fixedly connected to the upper end of the guide rod 2, a cylinder 4 fixedly connected to the upper surface of the top plate 3, a connecting shaft 5 provided at the output end of the cylinder 4, a fixing plate 6 fixedly connected to the lower end of the connecting shaft 5, a punch 7 fixedly connected to the lower surface of the fixing plate 6, a concave die 8 fixedly connected to the upper surface of the base 1, a pressure rod 9 slidably connected to the inner surface of the concave die 8, a first spring 10 provided on the outer surface of the pressure rod 9, a pressure block 11 fixedly connected to the left end of the pressure rod 9, and a wedge block 12 fixedly connected to the right end of the pressure rod 9; the inner surface of the concave die 8... The surface is slidably connected to the inclined top block 13, and the outer surface of the inclined top block 13 is fixedly connected to the limiting block 14. The cavity 8 is provided with a limiting cavity 15. The outer surface of the guide rod 2 is slidably connected to the fixed plate 6 to guide the movement of the fixed plate 6. The left end of the first spring 10 is fixedly connected to the cavity 8, and the right end of the first spring 10 is fixedly connected to the wedge block 12. The outer surface of the wedge block 12 is slidably connected to the inclined top block 13, the outer surface of the wedge block 12 is slidably connected to the cavity 8, the outer surface of the inclined top block 13 is slidably connected to the cavity 8, and the inner surface of the limiting cavity 15 is slidably connected to the limiting block 14 to limit the movement of the limiting block 14.

[0020] A nozzle 16 is fixedly connected to the inner surface of the die 8. An air pipe 17 is fixedly connected to the outer surface of the nozzle 16. A piston cylinder 18 is fixedly connected to the end of the air pipe 17 away from the nozzle 16. A second spring 19 is fixedly connected inside the piston cylinder 18. A piston block 20 is fixedly connected to the lower end of the second spring 19. A piston rod 21 is fixedly connected to the lower surface of the piston block 20. A pressure plate 22 is fixedly connected to the lower end of the piston rod 21. A through hole 23 is provided on the outer surface of the pressure plate 22. The inner diameter of the through hole 23 is larger than the outer diameter of the connecting shaft 5 to avoid affecting the movement of the fixed plate 6. The nozzle 16 is connected to the air pipe 17, and the air pipe 17 is connected to the piston cylinder 18 to facilitate the blowing operation inside the die 8. The outer surface of the piston block 20 is slidably connected to the piston cylinder 18, and the outer surface of the piston rod 21 is slidably connected to the piston cylinder 18. The outer surface of the piston cylinder 18 is fixedly connected to the top plate 3. The upper surface of the fixed plate 6 is in contact with the pressure plate 22.

[0021] Working principle: During mold closing, cylinder 4 is activated, driving connecting shaft 5 to move fixed plate 6 and punch 7 downwards along guide rod 2, thereby cooperating with punch 7 and die 8 to close the mold and perform workpiece forming operation. During the mold closing process, the workpiece will press against inclined top block 13 and slide along the inclined surface on wedge block 12 under the limiting action of limiting block 14 and limiting cavity 15, thereby driving wedge block 12 to move to the left and compressing the first spring 10, while simultaneously moving pressure block 11 to the left. After the workpiece is formed, cylinder 4 retracts, punch 7 will disengage from die 8, and then under the rebound force of the first spring 10, it will lift the workpiece formed inside die 8, achieving demolding, thereby improving work efficiency. When the rebound force of spring 10 is insufficient to lift the molded workpiece inside the die 8, simply press the extended pressure block 11 to drive the wedge block 12 to move to the right. This will work in conjunction with the rebound force of the first spring 10 to push the workpiece out, thereby improving practicality. During the retraction of the punch 7, the fixed plate 6 will press the pressure plate 22 upward, thereby driving the piston rod 21 and piston block 20 to move upward along the inside of the piston cylinder 18. This will also compress the second spring 19, thereby spraying the compressed air through the air pipe 17 and nozzle 16 into the inside of the die 8. This airflow will blow out impurities inside the die 8, preventing them from adhering to the subsequently molded workpiece. This will ensure that the cavity remains clean for a long time and indirectly improve the product qualification rate.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A molding die for an automobile A-pillar, comprising: A base (1) has a guide rod (2) fixedly connected to its upper surface. A top plate (3) is fixedly connected to the upper end of the guide rod (2). A cylinder (4) is fixedly connected to the upper surface of the top plate (3). A connecting shaft (5) is provided at the output end of the cylinder (4). A fixing plate (6) is fixedly connected to the lower end of the connecting shaft (5). A punch (7) is fixedly connected to the lower surface of the fixing plate (6). A die (8) is fixedly connected to the upper surface of the base (1). Its features include... The inner surface of the die (8) is slidably connected to a pressure rod (9), the outer surface of the pressure rod (9) is provided with a first spring (10), the left end of the pressure rod (9) is fixedly connected to a pressure block (11), the right end of the pressure rod (9) is fixedly connected to a wedge block (12), the inner surface of the die (8) is slidably connected to a sloped top block (13), the outer surface of the sloped top block (13) is fixedly connected to a limit block (14), and the inside of the die (8) is provided with a limit cavity (15). A nozzle (16) is fixedly connected to the inner surface of the concave mold (8), and an air pipe (17) is fixedly connected to the outer surface of the nozzle (16). A piston cylinder (18) is fixedly connected to the end of the air pipe (17) away from the nozzle (16). A second spring (19) is fixedly connected inside the piston cylinder (18). A piston block (20) is fixedly connected to the lower end of the second spring (19). A piston rod (21) is fixedly connected to the lower surface of the piston block (20). A pressure plate (22) is fixedly connected to the lower end of the piston rod (21).

2. The molding die for an automobile A-pillar according to claim 1, characterized in that, The outer surface of the pressure plate (22) is provided with a through hole (23), the inner diameter of which is larger than the outer diameter of the connecting shaft (5).

3. The molding die for an automobile A-pillar according to claim 1, characterized in that, The outer surface of the guide rod (2) is slidably connected to the fixing plate (6), the left end of the first spring (10) is fixedly connected to the die (8), and the right end of the first spring (10) is fixedly connected to the wedge block (12).

4. The molding die for an automobile A-pillar according to claim 1, characterized in that, The outer surface of the wedge block (12) is slidably connected to the inclined top block (13), the outer surface of the wedge block (12) is slidably connected to the die (8), and the outer surface of the inclined top block (13) is slidably connected to the die (8).

5. A molding die for an automobile A-pillar according to claim 1, characterized in that, The inner surface of the limiting cavity (15) is slidably connected to the limiting block (14).

6. A molding die for an automobile A-pillar according to claim 1, characterized in that, The nozzle (16) is connected to the air pipe (17), and the air pipe (17) is connected to the piston cylinder (18).

7. A molding die for an automobile A-pillar according to claim 1, characterized in that, The outer surface of the piston block (20) is slidably connected to the piston cylinder (18), the outer surface of the piston rod (21) is slidably connected to the piston cylinder (18), and the outer surface of the piston cylinder (18) is fixedly connected to the top plate (3).

8. A molding die for an automobile A-pillar according to claim 1, characterized in that, The upper surface of the fixing plate (6) is in contact with the pressure plate (22).

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